Belmont Senior High School is a public high school located at 1575 West 2nd Street in the Westlake community of Los Angeles, California. The school, which serves grades 9 through 12, is part of the Los Angeles Unified School District.

Westlake, also known as the Westlake District, is a residential and commercial neighborhood in Central Los Angeles, California, United States. It was developed in the 1920s. Many of its elegant mansions have been turned into apartments and many new multiple-occupancy buildings have been constructed.